9.15 + WEIB(0.827, 2.68)

How can I translate this into the standard Weibull distribution:

WEIBULL.DIST(ALPHA,BETA)

I will need to calculate the probability of P(X<=x) in Excel. Excel has the following syntax:

WEIBULL.DIST(X,ALPHA,BETA,TRUE/FALSE)

I would appreciate your input.

Thank You,